Explicación paso a paso:
40 l 2 90 l 2 120 l 2
20 l 2 45 l 5 60 l 2
10 l 2 9 l 3 30 l 2
5 l 5 3 l 3 15 l 3
1 1 5 l 5
1
m.c.d = 2×5 = 10
m.c.m = 8×5×3 = 120
